Open your theme's function.php file, and simply insert the follwing code between (or inside) <?php and ?>:

//disable auto p
remove_filter ('the_content', 'wpautop');

//disable wptexturize
remove_filter('the_content', 'wptexturize');

That's it! I hope you find this helpful.

Step 1

Now open comments.php, and look for the following code:

<?php foreach ($comments as $comment) : ?>

<?php $comment_type = get_comment_type(); ?> 
<?php if($comment_type == 'comment') { ?>

In the code we added, line 1 means that we will get the type (comment or trackback) of all the comments it parses for the specific post. Then line 2 will filter and show only the ones with the type comment. Thus your comments will be posted as normal but without the trackbacks or pingbacks along.

Step 2

<?php endforeach; /* end for each comment */ ?>

<?php } else { $trackback = true; } /* End of is_comment statement */ ?>

The appended line of code means that if it has filtered comments with type trackback, it shall set the variable $trackback to true, but nothing of those trackbacks will appear still. Don't worry we really didn't discard those precious trackbacks completely because we've got another way of handling them which we will do in the succeeding step.

Step 3

<?php else : // this is displayed if there are no comments so far ?>

<?php if ($trackback == true) { ?>
  <h3>Trackbacks</h3>
  <ol>
  <?php foreach ($comments as $comment) : ?>
  <?php $comment_type = get_comment_type(); ?>
  <?php if($comment_type != 'comment') { ?>
  <li><?php comment_author_link() ?></li>
  <?php } ?>
  <?php endforeach; ?>
  </ol>
<?php } ?>

In line 1, if there are trackbacks found then it shall execute the inside code. "Trackbacks" in line 2 will be the title header for the trackbacks or pingbacks section. As you can see, "Trackbacks" will only appear if there are any trackbacks or pingbacks available. Then the rest of the code is the default way of rendering trackbacks which is just similar to comments (like having its author, author's link, etc).

You're done! Try refreshing your blog and see if it works. This hack would only be useful if you really are using trackbacks or pingbacks with your posts. So have fun.